def test_memoized_property(self):
from xoutil.inspect import getattr_static
from xoutil.decorator import memoized_property, reset_memoized
class Foobar(object):
@memoized_property
def prop(self):
return self
with self.assertRaises(AttributeError):
@prop.setter
def prop(self, value):
pass
with self.assertRaises(AttributeError):
@prop.deleter
def prop(self, value):
pass
foo = Foobar()
self.assertNotEquals(getattr_static(foo, 'prop'), foo)
self.assertIs(foo.prop, foo)
self.assertIs(getattr_static(foo, 'prop'), foo)
# After the first invocation, the static attr is the result.
reset_memoized(foo, 'prop')
self.assertNotEquals(getattr_static(foo, 'prop'), foo)
def test_module_level_memoized_props(self):
import customizetestbed as m
from xoutil.inspect import getattr_static
self.assertNotEquals(getattr_static(m, 'memoized'), m)
self.assertIs(m.memoized, m)
self.assertIs(getattr_static(m, 'memoized'), m)